Ball-bearing



2 SheetS-Shee-t 1.

(No Model.)

J. JACKSON.

BALL BEARING.

- No. 392,956. Patented-Noir. 13, 1888'.

WITNESSES.

I @Kga/az Zyow'ezz,

(No Model.) Y 2 Sheets-Sheet 2.

J. JACKSON.

BALL BEARING. No. 392,956. Patented Nov. 13, 1888.

lllhlI WITNESISES, ENTR, zmwmzyewezz tssg-/ ./ttorney,

iinrree Smarts FICE@ JOSIAH JACKSON, OF COVENTRY, COUNTY OF VARVICK, ENGLAND, AS- SIGNOR, BY MESNE ASSIGNMENTS, TO THE SPRINGFIELD BICYCLE MANU- FACTURING COMPANY, OF MASSACHUSETTS.

BALL-BEARING.

SPECIFICATIONforming part of Letters Patent No. 392,956, dated November 13, 1888.

Application filed July 3, 1888.

To @ZZ whom, t may concern:

Be it known that I, Joslin JACKSON, a subject of the Queen of Great Britain, residing at No. 59 Lower' Ford Street, Coventry, county of Warwick, England, have invented a new and useful Improvement in Ball-Bearings for Bicycles, (for which have obtained apatent in Great Britain, No. 116, bearing date January 3,1S85,)of which the following is a speci 1o iication.

This invention relates to certain new and useful improvements in ball-bearings; anditconsists,substantially, in such features of construction, arrangement, and combinations of parts as will hereinafter be more particularly described, and pointed out in the claims, and which was patented in England, January 3, 1885, No. 11G.

` The object of this invention is an adjustable 2o means for instantly regulating the wear in ball and roller bearings and in-setting77 the same, so that perfect freedom of action shall always be obtainable without lateral play or rattle,77 usually experienced in bearings of this kind as now constructed, which increases with wear and cannot easily be obviated.

According to this invention as applied to double bearings the balls or rollers are held in grooves of the usual form in asuitable bush or 3o box and retained by collars-or covers, upon which half the groove may be formed. .These covers or collars are arranged to be drawn a certain distance into the bush for adjusting the balls, and instead of being fastened in any of the usual ways are formed with projecting sleeves, one with female thread and the other with male thread. The latter sleeve passes through the balls and bush and encircles the driving-shaft, which also passes through the 4o bush. The adjustment of the balls is effected by screwing the collar with female thread down the sleeve with male thread, which draws the two collars nearer together. For the pur'- pose of adjustment one ofthe collars is formed .45 on the outside with a milled collar, which gears with a suitablyarranged cross-screw. rThis cross-screw, which is held between suitable standards and arranged to turn, prevents any shifting of the collar; but by turning the 5o said screw the collar is screwed in either di- Serial No. 278.889. (No model.) Patented in England January 3, 1885, No. 116.

l rection, thereby enabling a perfect adjustment of the bearings or grooves for the balls to be instantly effected. As additional security against shifting ofthe collar with sleeve with male thread a certain length of the sleeve may be squared and the interior of bush made to correspond,or other known means may be used for this purpose.

fben this invention is applied to vclocipedes, the cross-screw may be iitted on the 6o crank.

A modification of the above is to dispense with the milled collar and cross-screw and to have the screwed sleeves of collars projecting outside bush and slit, the one with female thread for a suitable distance to form a spring, which by fitting the outside with lugs and cross-screws may be tightened round the inner sleeve to prevent shifting after adjustment, as before described. For additional se- 7o curity against turning, a pinching-screw may be suitably fitted to the split sleeve,so that the point may act against the inner sleeve. The driving-shaft passes through the inner sleeve, to which it maybe secured by cross-pins or other known mechanical means.

The lirst plan is more suitable for double bearings and the second for single, but either may be used for either plan.

Referring to the accompanying drawings, Figure' 1 represents an end View of one arrangement fer carrying out thisinventien, having crank-arm attached; Fig. 2, alongitudi nal view; Fig. 3, a sectional elevation; Fig. 4, an end View of another arrangement, Fig. 5, a side view of same; Fig. 6, a sectional View; Fig. 7, an end view of another arrangement; Fig. 8, a sectional view of same; Fig. 9, a side view, partly in section, ofa modication Oflast figure; Fig. 10, an end view of another arrangement; Fig. 1l, a sectional View of same.

Referring to Figs. 1, 2, and 3, a represents part of frame of velocipede, having the bearing attached by collar b, secured to frame by outside screw, c. d is crank-arm secured to axle e by cross-pin c', f, bush of bearing, being formed with a half bearing groove for the balls g at interior of each end. Through this bush passes a sleeve, h, having a flange or collar, h', at one end te retain one set of balls.

A portion of this sleeve is screw-threaded on outside, down which a second collar or cover, t', is screwed, the inner side of which is made to form a half groove bearing for the other set of balls. It will be readily understood that the adjustment of the bearings for both sets of balls is effected by screwing down the cover @which draws the flange or cover 7L into bush and against balls. The axle 0 passes through sleeve 7L, to which it may be secured in any known manner. This cover z' is iitted or formed on outside with a flange, 7s, having its periphery eut with slanting teeth or a milled edge for a eross-screw, Z, to gear in. This screw Z is held between two standards, m, attached to crank arm d by a bolt passing through and projecting beyond the standards. The length of bolt passing through screwZ is squared, as shown at Fig. 3, and hole made to correspond. This bolt is formed with an outside square head, n, and secured by nut o. The adjustment of the balls is effected by simply turning nut a by Spanner which revolves the screw Z, thereby turning cover i.

Referring to Figs. 4, 5, and 6, these represent a modification suitable for a single set of balls. In this arrangement the screw Z of preceding plan is replaced by a turned-over piece, p, the hook end of which is formed with teeth corresponding to the milled edge k. The adj ustment is eiiected by unscrewing nut g suliicient to allow the piece p to be pushed up to admit of edge of 7c being free of teeth of p, so that cover z' can be screwed down by hand. In this arrangement the sleeve h of preceding figures is not used, the axle e being formed or iitted with outside collar, e', and the part that passes through bush being screw-threaded for collar 't' to screw onto, the balls being held off the thread by thesleeve part of z'.

Referring to Figs.' 7 and 8 these views represent another modification, in which the adjust-nient is secured by a pinching-screw. In this plan the sleeve 71A has a collar or ange at one end, the remainder of it being screwl` threaded and passed through narrow bush f. The adjustment of the balls is effected by screwing down a second sleeve, 7c, suitably provided with part bearing for the balls and secured on h by screw r. The axle passes through 7L, to which it is secured in any suitable manner. This bearing may be attached to frame by brackets, as represented. A modicationof this plan is represented at Fig. 9, and is the arrangement I use in double velocipedes capable of being converted into single ones, the two frames being fitted with a clutching arrangement to fasten round bush f in grooves a b. In this plan it will be observed that the balls are held by screwed-in collar c at each end, the said collar being secured from turning after adjustment by pinching-screws r. The bush is formed with studs g, to admit of more metal for the female thread of screwr r. d represents axle or sleeve for axle to pass through, held in bush by balls and grooves e. In double machines I use two of these double bearings.

Referring to Figs. 10 and 11, these views represent another modification of Figs. 7 and 8. The sleeve h is used, as before described; but insteadof the pinching-screwr, or supplementary to it, the sleeve h is slotted down for a certain distance and formed with outside lugs, s, fitted with crossscrews t. When the bearing is to be adj usted, the screws are loosened, which admits of sleeve 7a being screwed down. When the screws are tightened up, which firmly pinches the sleeve round h for additional security, a pinching-screw may also be used. I

Having thus described my invention, whatI claim as new, and desire to secure by Letters Patent, is`

l. The combination,with the axle-sleeve eX- teriorly screw-threaded for a short distance from its inner end and formed at its outer end with an annulus or flange forming a half bearing groove, of the bush j', surrounding said sleeve and formed interiorly at each end with a half'bearing groove, the two sets of balls, and the cover t', screwing onto the sleeve and formed with an exterior half bearing groove, the whole being so arranged and combined as thatthe turning of the cover will effect Vthe simultaneous adjustment of both sets of balls, substantially as described.

2. The combination, with the bush f and axle-sleeve h, of the adj usting-eover z', formed with an outside toothed or milled iiange, and a gearmeshing with said iiange adapted to turn the cover when operated, as described and shown.

In testimony whereof I have hereunto set my hand in the presence of the two subscribing witnesses.

JOSIAH JACKSON.

Witnesses:

HAROLD WADE, I). HARKER.

IOO 

